Boston City Council backs Army Corps plan to protect harbor neighborhoods from coastal flooding
A council resolution supports the city's bid for federal authorization of a $9 billion to $10.5 billion storm protection plan and names East Boston as a priority.
The Boston City Council has adopted a resolution supporting the city's application for federal authorization of a U.S. Army Corps of Engineers plan to protect Boston from coastal flooding, the council said Tuesday.
The Boston Harbor Coastal Storm Risk Management Comprehensive System Plan is estimated to cost $9 billion to $10.5 billion, according to the council. Building it would generally be eligible for a cost share in which the federal government pays 65 percent and non-federal sources pay 35 percent.
Without intervention, the Army Corps estimates, coastal flooding could affect more than 20,000 structures and cause more than $54 billion in cumulative damage across the city over the period it studied.
The resolution asks that the work be sequenced to put life safety, emergency access and evacuation routes, critical infrastructure, environmental justice communities and socially vulnerable residents first. It also asks that protecting one area not shift flood risk onto another.
The council named East Boston a priority, citing flood exposure for homes, affordable housing, schools, small businesses, the MBTA Blue Line, the harbor tunnels, evacuation routes, infrastructure near Logan Airport, and industrial and fuel facilities along Chelsea Creek. The resolution supports designating an early project in the neighborhood and calls for protection along the waterside of Border Street, consistent with the city's Resilient Border Street Waterfront Project.
In Charlestown, where the council said flooding can come from the Navy Yard, the Little Mystic Channel and the Mystic River, the resolution calls for a continuous, adaptable line of protection that preserves historic resources and keeps the Harborwalk connected. It also calls for advancing the plan's full DT-3 alignment so that more of the waterfront receives structural protection.
The resolution further calls for rebuilding and maintaining the Harborwalk, integrating stormwater and drainage systems, planning for compound flooding, analyzing the reliability of deployable flood gates, and using designs that can adapt to sea-level rise.
The council urged the Army Corps, the city and state and federal partners to set out timelines, funding responsibilities and opportunities for community input.
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